Independent Analysis Supports Hydraulic Borehole Mining Method Applicability for Bonnie Claire Lithium Project

VANCOUVER, BC / ACCESS Newswire / April 29, 2026 / Nevada Lithium Resources Inc. (TSXV:NVLH)(OTCQB:NVLHF)(FSE:87K) ("Nevada Lithium" or the "Company") is pleased to announce the results of an independent technical due diligence review conducted by WSP UK Limited ("WSP") on the Hydraulic Borehole Mining Method ("HBHM") at its 100% owned Bonnie Claire Lithium project (the "Project" or "Bonnie Claire"), located in Nye County, Nevada.

Nevada Lithium's CEO, Stephen Rentschler, comments:

"We are pleased to announce the results of a technical assessment by WSP UK Limited, a subsidiary of WSP Global Inc., one of the world's foremost engineering and design firms. With significant in-house hydraulic borehole mining experience to validate its recommendations, WSP has assessed the viable application of the Hydraulic Borehole Mining Method (HBHM) to access Bonnie Claire's high-grade mineralization at depth. Currently, this mineralization includes recoverable lithium, boron, cesium and rubidium, with the potential recovery of additional critical minerals such as rare earth elements.

Importantly, this independent technical assessment does not recommend an in-field test of HBHM for the Company's upcoming Preliminary Feasibility Study (PFS). WSP has advised Nevada Lithium that additional bench-scale testing and modeling would be sufficient for the mining section of the PFS. This recommendation is expected to significantly reduce the cost associated with completion of the PFS.

In addition to its technical assessment of HBHM, WSP also identified alternative mining methods with potential viability at the Bonnie Claire Deposit. These methods would be the subject of additional trade-off studies during the PFS process, such as those currently planned for the recovery of additional critical minerals from Bonnie Claire's high-grade mineralization.

In a world of increasing lithium demand and constraints on supply, lithium prices have continued to rise and have recently traded at levels above those modelled in the Company's recent Preliminary Economic Assessment (PEA)¹. We continue to work diligently to unlock shareholder value from our 100% owned Bonnie Claire Lithium Project."

Highlights of Independent Analysis

• Potential HBHM amenability confirmed: HBHM is applicable to the Bonnie Claire deposit and is a reasonable method for recovery of the deeper mineralized zones at Bonnie Claire. Additional bench-scale testing and modelling are required.

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